Grew up Mennonite (Anabaptist), not Calvinist, but not Mennonite anymore either! Wasn't John Calvin (Jean Cauvin) a Frenchman? I don't believe He was Dutch Reformed either, if what you are thinking is that my last name is Dutch.
Yes, my bad. I knew some Klaassens in Canada in college & don't think they were Calvinists. When I was young there were internal debates about me being Calvinist--Calvin lost :)